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Erected by Fergus, King of Galloway, 'to the glory of God' in 1142AD. It was colonised soon after by Cistercian monks from Rievaulx (Yorks) .Mary Queen of Scots spent her last night in Scotland here in May 1568, following the fateful Battle of Langside. And from here next day she took a boat to England, into nineteen years of incarceration and ultimately execution.